For today’s edition of Deal of the Day, Amazon has Promotheus (Blu-ray + DVD + Digital Copy) for just $19.99. That’s 50% off the movie’s usual retail price of $39.99.

Legendary director Ridley Scott (Alien, Blade Runner) returns to his sci-fi origins in this epic adventure bursting with spectacular action and mind-blowing visual effects. A team of scientists and explorers travels to the darkest corners of the universe searching for the origins of human life. Instead they find a dark, twisted world that hides a terrifying threat capable of destroying them…and all mankind!